Curvature-enhanced multipartite coherence in the multiverse*

IF 3.6 2区 物理与天体物理 Q1 PHYSICS, NUCLEAR
Shu-Min Wu, 树民 吴, Chun-Xu Wang, 春旭 王, Rui-Di Wang, 锐迪 王, Jin-Xuan Li, 金璇 李, Xiao-Li Huang, 晓理 黄, Hao-Sheng Zeng and 浩生 曾
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引用次数: 0

Abstract

Here, we study the quantum coherence of N-partite Greenberger-Horne-Zeilinger (GHZ) and W states in the multiverse consisting of N causally disconnected de Sitter spaces. Interestingly, N-partite coherence increases monotonically with curvature, whereas the curvature effect destroys quantum entanglement and discord, indicating that the curvature effect is beneficial to quantum coherence and harmful to quantum correlations in the multiverse. We find that with an increase in n expanding de Sitter spaces, the N-partite coherence of the GHZ state increases monotonically for any curvature, whereas the quantum coherence of the W state decreases or increases monotonically depending on the curvature. We find a distribution relationship, which indicates that the correlated coherence of the N-partite W state is equal to the sum of all bipartite correlated coherence in the multiverse. Multipartite coherence exhibits unique properties in the multiverse, suggesting that it may provide some evidence for the existence of the multiverse.
多元宇宙中曲率增强的多方相干性*
在这里,我们研究了由N个因果断开的德西特空间组成的多重宇宙中N个部分格林伯格-霍恩-蔡林格(GHZ)态和W态的量子相干性。有趣的是,N部分相干性随曲率的增加而单调增加,而曲率效应则会破坏量子纠缠和不和谐,这表明曲率效应对多元宇宙中的量子相干性有利而对量子相关性有害。我们发现,随着扩展德西特空间 n 的增加,在任何曲率下,GHZ 状态的 N 部分相干性都会单调增加,而 W 状态的量子相干性则会根据曲率的不同而单调减少或增加。我们发现了一种分布关系,它表明 N 方 W 态的相关相干性等于多重宇宙中所有双方相关相干性的总和。多方相干性在多元宇宙中表现出独特的性质,这表明它可能为多元宇宙的存在提供了一些证据。
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来源期刊
中国物理C
中国物理C 物理-物理:核物理
CiteScore
6.50
自引率
8.30%
发文量
8976
审稿时长
1.3 months
期刊介绍: Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of: Particle physics; Nuclear physics; Particle and nuclear astrophysics; Cosmology; Accelerator physics. The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication. The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal. The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.
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